//index.js
//获取应用实例
const app = getApp();

Page({
  data: {
    userInfo: {},
    hasUserInfo: false,
    canIUse: wx.canIUse("button.open-type.getUserInfo"),
    showTip: false
  },

  myLogin() {
    let that = this;

    wx.login({
      success: res => {
        // 发送 res.code 到后台换取 openId, sessionKey, unionId
        var input = that.data.userInfo;
        input.code = res.code;
        input.enterpriseId = app.globalData.enterpriseId;

        wx.showLoading({
          title: '通讯中...',
        });
        wx.request({
          url: app.globalData.serverUrl + "/user/getUserByCode",
          method: "post",
          data: input,
          success: function(resp) {
            wx.hideLoading();
            console.log("wxLogin: " + resp);

            if (resp.data.success) {
              let user = resp.data.data;
              app.globalData.sysUser = user;
              app.globalData.token = user.token;

              if (user.token == null)
                return;

              wx.switchTab({
                url: "../reserve/index"
              });
            }
          },
          fail: function(error) {
            wx.hideLoading();
            wx.showToast({
              title: "通讯异常: " + JSON.stringify(error),
              icon: 'none',
            });             
          }
        });
      }
    });
  },

  onLoad: function(options) {
    console.log("index, onload: ", JSON.stringify(options));
    let that = this;

    let enterpriseId = null;
    if(options.enterpriseId == null || options.enterpriseId == "") {
      enterpriseId = wx.getStorageSync("enterpriseId")

      if (enterpriseId == null || enterpriseId == "") {
        this.setData({
          showTip: true
        })

        return;
      }

      app.globalData.enterpriseId = enterpriseId;

    } else { 
      app.globalData.enterpriseId = options.enterpriseId;
      wx.setStorageSync("enterpriseId", options.enterpriseId)
    }

    if (app.globalData.userInfo) {
      this.setData({
        userInfo: app.globalData.userInfo,
        hasUserInfo: true
      });

      this.myLogin();
    } else if (this.data.canIUse) {
      // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回
      // 所以此处加入 callback 以防止这种情况
      app.userInfoReadyCallback = res => {
        this.setData({
          userInfo: res.userInfo,
          hasUserInfo: true
        });
      };

      this.myLogin();
    } else {
      // 在没有 open-type=getUserInfo 版本的兼容处理
      wx.getUserInfo({
        success: res => {
          app.globalData.userInfo = res.userInfo;
          this.setData({
            userInfo: res.userInfo,
            hasUserInfo: true
          });
        }
      });

      this.myLogin();
    }
  },

  getUserInfo: function(e) {
    app.globalData.userInfo = e.detail.userInfo;
    this.setData({
      userInfo: e.detail.userInfo,
      hasUserInfo: true
    });

    this.myLogin();
  }
});
